FFIN vs STBA: Correlation
How closely do First Financial Bankshares, Inc. (FFIN) and S&T Bancorp, Inc. (STBA) trade together? Their weekly returns over three years give a correlation of 0.87, which is very strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FFIN and STBA?
Over the past 3 years, FFIN and STBA moved with a correlation of 0.87, which is very strong, meaning they move nearly in lockstep. Lately the two have drifted apart, with the 1-year correlation at 0.70 versus 0.87 over 3 years. Over 5 years the correlation is 0.79, and the annualized covariance of weekly returns is 760.0 %².
STBA is one of the assets that tracks FFIN most closely: it ranks #2 out of the 20 assets we track against FFIN. Correlation aside, the last 12 months split them widely, with STBA ahead by 39.8 points (-10.8% versus +29.0%).
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
FFIN vs STBA: side by side
| FFIN (First Financial Bankshares, Inc.) | STBA (S&T Bancorp, Inc.) | |
|---|---|---|
| 1-year return | -10.8% | +29.0% |
| 5-year return | -22.9% | +102.2% |
| Volatility (ann.) | 30.5% | 28.7% |
| Beta vs S&P 500 | 0.84 | 0.68 |
| Max drawdown (3Y) | -31.4% | -26.1% |
| Market cap | $4.7B | $1.8B |
| P/E (trailing) | 18.0 | 13.3 |
| Dividend yield | 2.35% | 1.44% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | FFIN | STBA |
|---|---|---|
| 2022 | -31.2% | +12.6% |
| 2023 | -9.8% | +2.1% |
| 2024 | +21.6% | +18.7% |
| 2025 | -15.3% | +6.7% |
| 2026 | +12.2% | +29.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FFIN and STBA good diversifiers for each other?
Not really. At 0.87, the two trade almost as one position, and owning both buys little extra protection.
FAQ
What is the correlation between FFIN and STBA?
Using weekly returns as of 2026-08-27: 0.87 over 3 years, with 0.70 over the last year and 0.79 over 5 years.
Is STBA a good diversifier for FFIN?
Not really. At 0.87, the two trade almost as one position, and owning both buys little extra protection.
What does a correlation of 0.87 mean?
On the −1 to +1 scale, 0.87 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
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Related comparisons
Hubs: FFIN correlations · STBA correlations
